Vfcificatiow



2 'Sheets-Sheet 1.

Patented Apr. 13, 1886.

, W. H. HARRIS. MOLD PoR PORMING CASTINGS.

(No Model.)

(No Model.) I 2 Sheets-Sheet 2..

W. H. HARRIS. MOLD FOR FORMING CASTINGS.

No. 340,043. Patented Apr. 13, 1886.

a c Il o C Il L UNITED STATES ATENT OFFICE.

VILLIAM H. HARRIS, OF BUFFALO, NENV YORK, ASSIGNO'R TO JENNETTE E. HARRIS, OF SAME PLACE.

MOLD FOR 'FORMING CASTINGS.

-.L'-":"PCE`E'ICATION forming part of Letters Patent No 340,043. dated April 13, 1886,

Application tiled December li'. 1885.

To ally/hom it may concern.-

Serinl No. IHMITI. (No modeL the lower part, A, being provided with the Be it known that I, VILLIAM H. HARRIs. of i usual lugs, c, on its sides, having openings,

the city of Buffalo, in the county of' Erie and State of New York, have invented new and useful Improvements in Molds for I Uorming` Castings, of which the following` is a specifica tion.

This invention relates to improvements in molds for forming hollow castings, such as radiator-sections and the like.

The object of the invention is to simplify the operation of molding these casti ugs, whereby more uniform castings are produced with less labor and expense and in less time than heretofore.

The invention consists of the improvements which will be hereinafter f'ully described, and pointed out in the claim.

In the accompanying drawings, consisting of two sheets, Figure l represents a vertical cross-section of a mold containing my improvements, the mold being in position t'or casting. Fig. 2 represents a top plan View of the lower portion of the mold, showing the core in position. Fig. 3 is a vertical crossv section of the lower portion ol' the mold with the follower-board and pattern in position and ready to be removed from the sand. Fig. 4 is a similar view with the follower-board and pattern removed, the mold being in position to receive the core. Fig. 5 is a vertical crosssection of the cope or upper portion of the mold with the follower-board and pattern in place. Fig. 6 is a fragmentary top plan View showing the means of securing the pattern to the 'follower-board. Fig. 'T is a fragmentary vertical cross-section in line v au, Fig. 3, on an enlarged. scale. Fig. 8 is a vertical cross-section in line y y, Fig. l, on an enlarged scale. Fig. 9 is a longitudinal sectional elevation in line z z, Fig. 8. Fig. 10 is a longitudinal section in line xx, Fig. 4. Fig. ll. is a perspective View of one of the cap-plates. Fig. l2 is a perspective View of one ofthe grooved plates. Fig. 13 is a perspective View of' one of the ribbed plates which are attached to the follower-board.

Like letters of' reference refer to like parts in the several figures.

A represents the lower part of the flask, and A the upper part or cope of the flask,

which receive the pins c, secured to the sides of the cope A', and'whereby the two parts of the flask are held in place one upon the other.

B represents the pattern, whereby the two sides, the ends, and the bottom of' mold are formed in the lower flask, A. The pattern B is attached to a follower-board, O, by handles or loops c, which are ,inserted through slots or elongated openings c, formed in the board C, and wedges c, which are driven through the portion of' the loops c which project beyond the top ol' the board C. The board O is provided with pins c', which engage in the openings in the lugs c of the flask A, and retain the boa-rd in its proper place on the ask. In forming this portion of the mold, the board C, with the pattern B attached thereto, and the ask A are inverted from the position shown in Fig. 3, so that the flask A will rest upon the board O, with the pattern B seated thereon and surrounded by the flask. When the parts are in this position, the flask A is filled with sand, which is rammed in the usual manner to t'orm the mold around the pattern B. The flask, with the board C, is then reversed 0r turned over to the position shown in Fig. 3. The board C is now detached from the pattern by removing the wedges c?, and is lifted olif from the fla-sk, leaving the pattern embedded in the sand. The pattern is now removed from the sand by taking hold of the handles or loops c, leaving the mold formed in the sand, as shown in Fig. LL.

d represents four plates secured to the follower-board C, near the four corners of the pattern B, by screws d. The plates d are each provided with a horizontal rib, e, which eX- tends across the face of the plate at right angles to the sides of the pattern.

f are loose plates or caps, similar in form to the plates d, and each provided with a groove, f', which corresponds with the rib e on the lplates d. The plates or caps f are placed on the plates d before the iiask A is filled with sand and while it isin an inverted position from that shown in Figs. 3 and 7, so that when the liask A is turned over and the board and pattern are removed from the sand the plates f will remain embedded in the sand with IOO their inner edges in line with the sides of the mold and their grooved faces uppermost, as shown in Fig. 4.

G represents the core, which is 'inserted in the mold after removing the pattern B. The core G is provided with two rods, g y', which extend through the coreone near each end thereofand with their ends projecting from opposite sides of t-he core, as shown in Figs. l and 2. The rods g g are so arranged in the core that when the latter is inserted in its proper position in the mold the projecting ends of the rods g g will rest in the grooves f of the plates fand form supports for the core. By means of the rods y and plates f the core is readily inserted in its proper position in the mold.

When the core G has been placed in the mold, the caps f are covered by iiat plates h, -which are similar in form to the plates f and d. The plates h cover the ends o t' the rods g, which are seated in the grooves f, and the top of the plates h are flush with the top surface of the tiask A, so that when the upper iiask or cope, A, is secured in place upon the tiask A the ends of the rods g will be firmly held in place by the plates f and h, thus prevent-ing any accidental displacement of' the core in the mold.

lThe upper portion of the mold is formed similar to the lower portion, I being the pattern, which is attached to the follower-board J by loops or handles and wedges in the same manner in which the pattern B is fastened lto the board C. The pattern I and board J being arranged in position, and the flask A sethe sides and ends of the core and the mold L for thefmetal. which forms a hollow castingy having closed sides andends. 4

By forming the molds in this manner both parts of the mold can be made at the Same time by different persons, and by dispensing.

with the use of chaplets for supporting the core a great saving of timeis effectedv and the core is more securely held in place than by f the means heretofore employed. I claim as my invention-- rl`he combination, with a mold for forming I castings, of a core, G, provided with projecting rods g g, grooved plates f, embedded in the mold and supporting the projecting rods of the core, and plates h. covering the grooved plates f, and confining the rodsg in the grooves f thereof, substantially as set forth.

Witness my hand this 3d day of December, 1885. l

W. H. HARRIS.

Witnesses:

JNO. J. BonNER, CARL F. GEYER. 

